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Galina-37 [17]
3 years ago
12

To prepare for an experiment, ten different sources of food were sterilized and kept in a sterile container. Bacteria of the sam

e species were placed on each of the ten different food sources and kept at 26°C for two days. During this time, bacteria grew in nine of the containers. Based on this observation, the scientist could conclude that ________.
Biology
1 answer:
Goryan [66]3 years ago
6 0

Answer:

The correct answer will be- Bacteria were able to utilize the food material in nine containers by producing respective enzymes.

Explanation:

The process of utilization of food material as a source of food depends on the Operon machinery of the Bacteria. The Operons gets activated in the presence of the inducer molecule which leads to the gene expression and the production of the enzymes to digest the food substance.

In the given condition, since the bacterial growth was observed in the nine containers out of ten shows that bacteria expressed the genes and produces enzymes to digest the substance in nine plates only and showed growth.

Thus, Bacteria were able to utilize the food material in nine containers by producing respective enzymes is the correct answer.

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A nurse is providing teaching to a client who will undergo chemotherapy and radiation prior to hematopoietic stem cell transplan
jek_recluse [69]

Answer:

The main purpose of these therapies are to suppress the immune system and destroy cancer cells of the blood by destroying the ability of the body to produce blood cells inside the bone marrow in preparation of the bone marrow for the new stem cells from the donor.

Explanation:

In the treatment of acute myeloid leukemia (AML), hematopoietic stem cell transplantation (HSCT) procedure is employed. It involves the infusion of healthy blood-forming stem cells from a donor into the body of the patient to initiate production of healthy blood cells after the hematopoietic function of the bone marrow of the patient has been destroyed by chemotherapy and radiation.

Before the stem transplant, the patient is subjected to a conditioning process or therapy, which involves undergoing a treatment through chemotherapy and radiation therapy. <em>The main purpose of these therapies are to suppress the immune system and destroy cancer cells of the blood by destroying the ability of the body to produce blood cells inside the bone marrow in preparation of the bone marrow for the new stem cells from the donor. </em>

After these therapies, the transplant infusion takes place, which is usually painless.

4 0
3 years ago
Histopathology is the use of microscopes to view tissues to diagnose and track the progression of diseases. Why are thin slices
Darina [25.2K]

In the field of histopathology, the tissues to be observed under the microscope are cut in very thin slices. The thin slices make the tissue transparent, and thus, it  becomes easier to observe the internal structures and accurately diagnose a disease. The tissues slices cut for the observation are generally not more than 3 micro meters in their thickness.

Hence, the answer is 'to make the tissues transparent and easier to observe'.

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3 years ago
Is it true that life would not exist if we changed any of the fundamental constants for a tiny bit?
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If it is the temperature or something like that, maybe yes. It depends.
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B) cells.
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4 0
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Yes, but if it is like less then 500 feet away then no because the winds would be too strong and it might push your car off the road

7 0
3 years ago
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